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1. Product Overview
The IMC-P111P-LV is an industrial Ethernet-to-fiber media converter designed for Smart Grid, power substation, and rolling stock applications. It belongs to the IMC-P111 series produced by ORing Industrial Networking Corp. The article number and product designation are both IMC-P111P-LV. This model converts 10/100Base-T(X) Ethernet to 100Base-FX via an SFP interface and is engineered according to IEC 61850-3 and IEEE 1613 standards for high-reliability environments. The LV variant uses low-voltage DC input in the range 12–48 VDC and supports triple power inputs. Its mechanical construction follows the rugged IP-30 enclosure style and supports DIN-rail or wall-mount installation. Designed for harsh industrial conditions, it supports extended operating temperature and is suitable for mission-critical utility networks, transportation systems, and heavy industrial deployments.

2. Key Features
The IMC-P111P-LV includes the following primary capabilities and features:
• Compliance with IEC 61850-3 and IEEE 1613 standards for electromagnetic immunity and reliability in substation automation systems.
• Supports a single 10/100Base-T(X) Ethernet port with auto-negotiation and auto-MDI/MDI-X detection.
• Includes one 100Base-FX SFP socket supporting a variety of SFP transceivers.
• Supports Ethernet-to-fiber or Ethernet-to-SFP conversion for long-distance communication extension.
• Link Fault Pass-through (LFP) capability; detects link failures and propagates signals for higher-layer fault response.
• Supports full/half duplex operation on both copper and fiber interfaces.
• Store-and-forward switching mechanism ensures error checking and reliable data flow.
• Relay output for power failure alarm.
• DIP-switch configuration for LFP mode, Ethernet speed, copper duplex mode, and fiber duplex mode.
• Rugged IP-30 metal housing suitable for industrial use.
• Designed for harsh environments with operating temperature from -40 to 70°C.
• Supports wide DC voltage input (12–48 VDC) with triple redundant power sources.
• DIN-rail and wall-mount installation options included.
• LED indicators for Ethernet link/activity, speed, duplex, fiber link/activity, LFP status, fault status, and multiple power inputs.
• Compliant with EN50155 Ethernet requirements for rolling stock applications.
• High EMI/EMS immunity for long-term reliability.

3. Technical Specifications
Dimensions: 54.1 mm (W) x 106.1 mm (D) x 145.4 mm (H)
Weight: LV model approximately 650–660 g (varies slightly across documentation)
Enclosure: IP-30 rigid metal housing
Operating Temperature: -40 to 70°C
Storage Temperature: -40 to 85°C
Operating Humidity: 5% to 95% non-condensing

Ethernet Interface:
• Copper port: 1x 10/100Base-T(X), RJ45, auto-negotiation, auto-MDI/MDI-X
• Fiber port: 1x 100Base-FX via SFP socket (model-dependent SFP required)

Supported Ethernet standards:
• IEEE 802.3 for 10Base-T
• IEEE 802.3u for 100Base-TX and 100Base-FX
• IEEE 802.3x for Flow Control

Processing: Store-and-forward switching
Power Consumption: Typical 10.08–10.56 W (LV model)
Power Inputs: Triple DC input. 12–48 VDC via terminal block, 12–45 VDC via power jack.
Protections: Overload current protection, reverse polarity protection on terminal block power inputs.
Fiber Specifications (from series specs; SFP-dependent for this model):
• Supports standard 100Base-FX SFP modules (multi-mode or single-mode depending on SFP used).
• Typical operation at wavelength 1310 nm.
• Distances determined by installed SFP module.

4. Functionality
The IMC-P111P-LV functions as a media converter bridging copper Ethernet and fiber optic networks. It receives Ethernet frames through the RJ45 10/100Base-T(X) port and outputs corresponding frames via the SFP 100Base-FX interface. The unit extends signal transmission distances beyond copper limitations and enhances noise immunity. Suited for substation automation networks (IEC 61850-3), the converter withstands high EMI/EMS and extreme temperature environments, making it suitable for industrial automation, transportation (rolling stock), energy distribution, security automation, process control, and remote communication extension.
The converter supports MDI/MDIX auto detection, eliminating crossover cable requirements. It uses DIP-switches to determine LFP behavior, forcing a shutdown of the corresponding link when the opposite side fails, enabling management systems to detect upstream issues. The fiber and Ethernet ports support full and half duplex which can be manually configured through DIP-switches.

5. Components and Accessories
Included equipment and accessories:
• 7-pin terminal block for LV model power input
• Dust cover for RJ45 port
• Dust cover for SFP slot
• Wall-mount kit
• DIN-rail mounting kit (25 mm)
• Flat screws (M3 x 5)
• Documentation such as Quick Installation Guide
Optional components:
• SFP transceivers for 100Base-FX operation (multi-mode or single-mode)
• Additional mounting hardware depending on installation environment

Front-panel components include:
• 10/100Base-T(X) copper port with duplex and link/activity LEDs
• 100Base-FX SFP slot with duplex and link/activity LEDs
• Power LEDs (Power 1, Power 2, Power 3 for LV model)
• Fault LED
• LFP indicator LED
• Reset button
• DIP-switches for configuration
• External relay alarm terminal

6. Installation and Setup
The unit supports both DIN-rail and wall-mounted installation. It can be installed by attaching the device to a DIN-rail bracket using the provided hardware or securing the wall-mount plate with screws.
Power input for LV model is available through the 7-pin terminal block (12–48 VDC) and the auxiliary power jack (12–45 VDC). Triple redundant power allows connection of PWR-1, PWR-2, and PWR-3 inputs. The terminal block also includes relay output contacts used for alarm signal wiring.
DIP-switches allow the following configurations:
• DIP-1: LFP mode enable/disable
• DIP-2: Ethernet speed selection (10 Mbps or auto 10/100 Mbps)
• DIP-3: Copper port duplex mode (half duplex or auto full/half duplex)
• DIP-4: Fiber duplex mode (half duplex or full duplex)
Power alarm DIP-switches also configure whether PWR-1 or PWR-2 failure will activate the relay output.
No software configuration is required as the device operates in unmanaged mode.

7. Performance and Capabilities
Data rates supported: 10/100 Mbps copper, 100 Mbps fiber
Transmission method: Store-and-forward switching
Copper performance: Auto-negotiation for speed and duplex, link/activity and speed indicators
Fiber performance depends on SFP usage; typical SFP characteristics include:
• Multi-mode 62.5/125 or 50/125 µm fiber
• Distance typically 2 km at 1310 nm wavelength with MM SFP
• Single-mode fiber supporting distances up to 30 km at 1310 nm with appropriate SM SFP
The unit delivers high electromagnetic tolerance required for IEC 61850-3 environments and ensures robust operation under surge, vibration, shock, and electrical fast transient events.
Limitations:
• Supports only up to 100 Mbps link speeds (no gigabit capability)
• Does not provide Layer-2 switching functions beyond media conversion (unmanaged)
• Fiber capabilities depend exclusively on selected SFP module

8. Standards and Compliance
The IMC-P111P-LV meets numerous industrial, environmental, safety, and EMC standards, including:
• IEC 61850-3 (substation automation reliability and EMC)
• IEEE 1613 (high-reliability networking equipment for substations)
• EN50155 (railway rolling stock equipment requirements)
• FCC Part 15 Class A, CISPR EN55022 Class A (EMI)
• EN61000-4-2 Electro-Static Discharge (ESD)
• EN61000-4-3 Radiated Susceptibility (RS)
• EN61000-4-4 Electrical Fast Transient (EFT)
• EN61000-4-5 Surge immunity
• EN61000-4-6 Conducted Susceptibility (CS)
• EN61000-4-8 Magnetic field immunity
• EN61000-4-11 Voltage dips and interruptions
• Shock: IEC60068-2-27
• Vibration: IEC60068-2-6
• Free fall: IEC60068-2-32
• Safety: EN60950-1

9. Additional Information
The IMC-P111P-LV includes a 5-year manufacturer warranty from ORing Industrial Networking Corp. Support, maintenance, and documentation are provided through ORing’s support channels. The device’s hardware-based design requires minimal maintenance, with periodic inspection recommended for fiber connectors, power wiring, and mounting stability. Firmware updates are generally not required due to its unmanaged nature and fixed-function design. The unit is intended for long-term deployment in industrial networks and critical infrastructure.

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